summaryrefslogtreecommitdiff
path: root/cpp/src/qpid/sys/posix/Module.h
diff options
context:
space:
mode:
Diffstat (limited to 'cpp/src/qpid/sys/posix/Module.h')
-rw-r--r--cpp/src/qpid/sys/posix/Module.h127
1 files changed, 0 insertions, 127 deletions
diff --git a/cpp/src/qpid/sys/posix/Module.h b/cpp/src/qpid/sys/posix/Module.h
deleted file mode 100644
index 5a0358a748..0000000000
--- a/cpp/src/qpid/sys/posix/Module.h
+++ /dev/null
@@ -1,127 +0,0 @@
-#ifndef _sys_posix_Module_h
-#define _sys_posix_Module_h
-
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
- */
-
-#include "qpid/QpidError.h"
-#include "qpid/log/Statement.h"
-
-#include <boost/noncopyable.hpp>
-#include <iostream>
-#include <dlfcn.h>
-
-namespace qpid {
-namespace sys {
-
-typedef void* dso_handle_t;
-
-template <class T> class Module : private boost::noncopyable
-{
- typedef T* create_t();
- typedef void destroy_t(T*);
-
- dso_handle_t handle;
- destroy_t* destroy;
- T* ptr;
-
- void load(const std::string& name);
- void unload();
- void* getSymbol(const std::string& name);
-
-public:
- Module(const std::string& name);
- T* operator->();
- T* get();
- ~Module() throw();
-};
-
-template <class T> Module<T>::Module(const std::string& module) : destroy(0), ptr(0)
-{
- load(module);
- //TODO: need a better strategy for symbol names to allow multiple
- //modules to be loaded without clashes...
-
- //Note: need the double cast to avoid errors in casting from void* to function pointer with -pedantic
- create_t* create = reinterpret_cast<create_t*>(reinterpret_cast<intptr_t>(getSymbol("create")));
- destroy = reinterpret_cast<destroy_t*>(reinterpret_cast<intptr_t>(getSymbol("destroy")));
- ptr = create();
-}
-
-template <class T> T* Module<T>::operator->()
-{
- return ptr;
-}
-
-template <class T> T* Module<T>::get()
-{
- return ptr;
-}
-
-template <class T> Module<T>::~Module() throw()
-{
- try {
- if (handle && ptr) {
- destroy(ptr);
- }
- if (handle) unload();
- } catch (std::exception& e) {
- QPID_LOG(error, "Error while destroying module: " << e.what());
- }
- destroy = 0;
- handle = 0;
- ptr = 0;
-}
-
-template <class T> void Module<T>::load(const std::string& name)
-{
- ::dlerror();
- handle = ::dlopen(name.c_str(), RTLD_NOW);
- const char* error = ::dlerror();
- if (error) {
- THROW_QPID_ERROR(INTERNAL_ERROR, error);
- }
-}
-
-template <class T> void Module<T>::unload()
-{
- dlerror();
- dlclose(handle);
- const char* error = dlerror();
- if (error) {
- THROW_QPID_ERROR(INTERNAL_ERROR, error);
- }
-}
-
-template <class T> void* Module<T>::getSymbol(const std::string& name)
-{
- dlerror();
- void* sym = dlsym(handle, name.c_str());
- const char* error = dlerror();
- if (error) {
- THROW_QPID_ERROR(INTERNAL_ERROR, error);
- }
- return sym;
-}
-
-}}
-#endif //ifndef _sys_posix_Module_h
-